The materials on this site come from a wide variety of repositories and private collections. The low-resolution images available on the website are suitable for immediate printing or downloading to provide good-quality reference copies for a wide range of educational, creative, and research purposes. High-resolution copies of images from the collections of The New York Public Library are available for licensing for personal use and for professional reproduction through Photographic Services & Permissions. In many cases, copies of images from external repositories and collections are also available, but must be obtained from those repositories and collections directly. To find out more about how to obtain a copy of a particular image, click the "Request a Copy" link when it appears.